Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4GNZ callsign genealogy
Currently held by Henderson, Joseph D
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K4GNZ's current licensee, walking backwards.
- HENDERSON, JOSEPH Dcancelled 1999-03-11
Successor callsigns
Callsigns held now by people who previously held K4GNZ.
- Henderson Sr, Joseph DALgranted 2026-08-12